First Releases for Crystalicons, DesignGridlayout, Riverlayout and Nuvolaicons Griffon Plugins

Batch of new plugins for integrating Griffon with DesignGridLayout and RiverLayout, and adding new icons!

Not only has Griffon 0.9 just been released, but this week also
sees the initial releases of a batch of new Griffon plugins:

The Crystalicons Plugin provides a shortcut for
adding icons based on Everaldo’s Crystal icon set.

DesignGridlayout Plugin provides integration
with DesignGridLayout. When using this plugin, you must either nest
designGridLayout inside a Container or provide a Container
reference as the node’s value. All DesignGridLayout methods can be
nested inside the node’s child closure.